package com.company.configurer;

import org.apache.log4j.Logger;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.Arrays;


/**
 * web请求日志切面类---专门针对控制层，被请求了，花了多少时间，请求发送的参数，返回得值等
 * @author yy
 */
 
@Aspect
@Component
@Order(1)
public class WebLogAspect {
	
    private Logger logger = Logger.getLogger(getClass());

    //线程副本类去记录各个线程的开始时间
    ThreadLocal<Long> startTime = new ThreadLocal<>();
	
	// 需要改这里(包名)
    @Pointcut("execution(public * com.company.project.web..*.*(..))")
    public void webLog(){
		
	}
    @Before("webLog()")
    public void doBefore(JoinPoint joinPoint) throws Throwable {
		logger.info("---------请求开始---------");
        startTime.set(System.currentTimeMillis());
        // 接收到请求，记录请求内容
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();
        // 记录下请求内容
        logger.info("URL : " + request.getRequestURL().toString());
        logger.info("HTTP_METHOD : " + request.getMethod());
        logger.info("IP : " + request.getRemoteAddr());
        logger.info("CLASS_METHOD : " + joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName());
        logger.info("ARGS : " + Arrays.toString(joinPoint.getArgs()));
    }
	
    @AfterReturning(returning = "ret", pointcut = "webLog()")
    public void doAfterReturning(Object ret) throws Throwable {
		
        // 处理完请求，返回内容
        logger.info("RESPONSE : " + ret);
        logger.info("SPEND:" + ( System.currentTimeMillis()-startTime.get() ));
		startTime.remove();//用完之后记得清除，不然可能导致内存泄露;
		logger.info("---------请求结束---------");
		 
    }
}

